Home / 1,401.75-2,102.90-632.25

Finding the Fourth Proportional to 1,401.75, 2,102.90 and 632.25

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Solution

The fourth proportional to 1,401.75, 2,102.90 and 632.25 is: 948.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,401.75 : 2,102.90 = 632.25 : x
  2. Step 2: Convert to fraction form
    1,401.75/2,102.90 = 632.25/x
  3. Step 3: Cross multiply
    1,401.75x = 2,102.90 × 632.25
  4. Step 4: Simplify right side
    1,401.75x = 1,329,555.36
  5. Step 5: Solve for x
    x = 1,329,555.36/1,401.75
  6. Step 6: Final answer
    x = 948.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.